Yep, one of the most essential parts of magick and any spiritual practice is having control over your mind and emotion. Willpower! You need to calm down.
When we are children, we naturally get carried away with our emotions. Children love to exaggerate upset and when parents give into it, it reinforces feeding into negative emotions and letting them run wild. Personally, my daughter knows that as soon as she starts to do this, she will get the opposite response she wants from me. Any chance she had to get what she wants is gone unless she calmly asks me nicely. The point is, I know adults who still act like this to one degree or another. We don't "grow out" of letting our emotions go wild. If our parents didn't show us how to, we need to teach ourselves how to through self discipline and self control.
Backtrack and focus on calming your emotions on command. Throughout the day randomly, take the time to examine your emotions, calm them, and release tension. Don't perpetuate emotion. If you get upset or angry, let go of it as soon as possible instead of "brooding" for hours or days. Meditate and practice controling your breathing and heart rate.
When you become good at all of this, then go back to your program and if you begin to feel this way, you will be able to quell it and continue on in a peaceful mood. Its also important to meditate before astral projection if we are feeling any anxiety or experiencing stress.